Maximum Intensity Map of the United States comprising Earthquakes of

Maximum Intensity Map of the United States comprising Earthquakes of Intensity* 6 and above Scale: 1:12,000,000 Polyconic Projection Base map from Rand McNally, Goode's World Atlas 1976 Seismologic records from NOAA, USGS, and others Preparation and Siesmology by Robison, N.E., 1999 after Sadigh, et al. and Toro et al., 1997 *Modified Mercalli Intensity Scale of 1931 VI (abridged) Felt by all, awakened all. Liquids set in strong motion. Damage slight in poorly built buildings. Considerable breakage of dishes, glassware, fallen objects and some overturned furniture. General alarm. Difficulty standing. Damage negligible in earthquakeresistant structures, considerable in old or badly designed buildings, chimneys cracked, broken windows. Damage to furniture and irrigation ditches. Alarm approaches panic, disturbed persons in motor cars, branches & trunks broken off of trees. Ejected sand and mud. Damage slight in well-built masonry structures. Partial collapse in ordinary buildings. Upset well flow. VII VIII